Woofun AI reports that Meta has completed an internal artificial intelligence model with capabilities comparable to Anthropic's Mythos 5. Analyst Jukan from Critini Research indicated that this development was rumored at ICML, with potential deployment scheduled for the coming months. Mythos 5 represents Anthropic's most powerful current offering, sharing a base with Fable 5 while relaxing specific high-risk security constraints. Meta recently launched Muse Spark 1.1, which targets programming, agents, and multimodal tasks. If the report holds true, Meta possesses an additional undisclosed cutting-edge model alongside its public releases.